Roll Mill

Name:
Roll Mill
Detailed information:
Two chilled steel rolls 48–72 inches wide and 12–24 inches in diameter turning in opposite directions at different speeds to exert shearing action; the separation (or nip) is adjustable by set screws. Because the shearing friction generates considerable heat, the rolls are water cooled. Such mills are standard equipment in the rubber, plastic, and adhesives industries; several usually rotat on one shaft. They can be used for mixing, but their chief use is for prewarming calender and extruder feed. Mills with three rolls are used for mixing and grinding paints and printing inks. Laboratory sizes of all types are available.